More than 2.5 years since version 2.0 arrived, Mozilla's other big project, desktop email client Thunderbird, has finally arrived at the big 3.0.

The free Outlook alternative offers a lot in its new version, including a tabbed interface, a completely revamped search and a filtering tool that allows you to narrow things down even further. It also adds an email setup tool that'll import most accounts - web and regular - with relative ease.

The idea is to transfer the speed, interface, reliability and customisation possibilities of Firefox into an email client. It's a free download for Windows, Mac OS X and Linux, and it's available right now from Mozilla. Grab it, and let us know what you think in the comments.